android自定义popwindow，并且有从底部弹出的动画

来源：互联网发布：怎么开发app软件编辑：程序博客网时间：2024/05/21 08:45

首先自定义popwindow类
pop_bottom.xml为自定义布局

public class CustomPopWindow extends PopupWindow {        private View mMenuView;        private ListView listView;        private TextView tv_ok;        private TextView tv_pop_title;        private LinearLayout liner_ok;        private TextView redpacket_tip;        private RelativeLayout liner_hasuse_redpacket;        public CustomPopWindow(Context context) {                super(context);                LayoutInflater inflater = (LayoutInflater) context                                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);                //pop_bottom为自定义布局                mMenuView = inflater.inflate(R.layout.pop_bottom, null);                listView=(ListView) mMenuView.findViewById(R.id.listview);                tv_ok= (TextView) mMenuView.findViewById(R.id.tv_ok);                tv_pop_title=(TextView) mMenuView.findViewById(R.id.tv_pop_title);                liner_ok= (LinearLayout) mMenuView.findViewById(R.id.liner_ok);                redpacket_tip= (TextView) mMenuView.findViewById(R.id.redpacket_tip);                liner_hasuse_redpacket= (RelativeLayout) mMenuView.findViewById(R.id.liner_hasuse_redpacket);                //设置SelectPicPopupWindow的View                this.setContentView(mMenuView);                //设置SelectPicPopupWindow弹出窗体的宽                this.setWidth(LayoutParams.MATCH_PARENT);                //设置SelectPicPopupWindow弹出窗体的高                this.setHeight(LayoutParams.WRAP_CONTENT);                //设置SelectPicPopupWindow弹出窗体可点击                this.setFocusable(true);                //设置SelectPicPopupWindow弹出窗体动画效果                this.setAnimationStyle(R.style.popupAnimation);                //实例化一个ColorDrawable颜色为半透明                //ColorDrawable dw = new ColorDrawable(0xb0000000);                //设置SelectPicPopupWindow弹出窗体的背景                //this.setBackgroundDrawable(dw);                this.getBackground().setAlpha(0);                final Activity activity=(Activity) context;                WindowManager.LayoutParams params=activity.getWindow().getAttributes();                  params.alpha=0.7f;                  activity.getWindow().setAttributes(params);                  //mMenuView添加OnTouchListener监听判断获取触屏位置如果在选择框外面则销毁弹出框                mMenuView.setOnTouchListener(new OnTouchListener() {                        public boolean onTouch(View v, MotionEvent event) {                                if(event.getAction()==MotionEvent.ACTION_UP){                                        dismiss();                                        WindowManager.LayoutParams params=activity.getWindow().getAttributes();                                          params.alpha=1f;                                          activity.getWindow().setAttributes(params);                                  }                                                                return true;                        }                });                this.setOnDismissListener(new OnDismissListener() {                    @Override                    public void onDismiss() {                         WindowManager.LayoutParams params=activity.getWindow().getAttributes();                           params.alpha=1f;                           activity.getWindow().setAttributes(params);                      }                });        }        public View getView(){            return mMenuView;        }        public ListView getListView() {                return listView;        }        public TextView getTv_pop_title() {                return tv_pop_title;        }        public LinearLayout getLiner_ok() {                return liner_ok;        }        public TextView getRedpacket_tip() {                return redpacket_tip;        }        public RelativeLayout getLiner_hasuse_redpacket() {                return liner_hasuse_redpacket;        }}

R.style.popupAnimation为窗体弹出动画
在res/values文件下建立以下代码

  <style name="popupAnimation" parent="android:Animation">        <item name="android:windowEnterAnimation">@anim/in</item>        <item name="android:windowExitAnimation">@anim/out</item>    </style>

在res/anim文件下建立动画文件
in.xml

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android">    <translate        android:duration="500"        android:fromYDelta="100%p"        android:toYDelta="0" />    <alpha        android:duration="500"        android:fromAlpha="0.0"        android:toAlpha="1.0" /></set>

out.xml

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android">    <translate        android:duration="500"        android:fromYDelta="0"        android:toYDelta="50%p" />    <alpha        android:duration="500"        android:fromAlpha="1.0"        android:toAlpha="0.0" /></set>

在使用CustompopWindow时，直接创建对象获取对应的控件就可以了

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